Backend

Webhook receiver without a server - Edge Function

No backend? Receive articles with a Supabase Edge Function or Cloudflare Worker

No server? No problem

Built for Lovable, Base44 and static sites — the function runs on Supabase, so you don't need a backend of your own

Deploy the function

Copy the file below, then run the deploy command from the comment at the top

Set the secret

Save your endpoint in VellumUp, copy the secret, and set it with supabase secrets set

Paste the URL

Your endpoint is https://your-project.supabase.co/functions/v1/vellumup-webhook

Deploy with the flag below or Supabase will reject every delivery with 401 before your code even runs — webhooks are authenticated by their signature, not a user login: --no-verify-jwt

Ready to use — just copy it in

The Supabase tab is complete — it verifies, saves to your database and needs zero code changes. The Workers tab verifies and leaves storage up to you.

supabase/functions/vellumup-webhook/index.ts

Create the articles table

Run this once in the Supabase SQL Editor — it matches the function's upsert exactly, including the unique key it relies on

Supabase SQL Editor

Tip: when an article is unpublished, just mark it as a draft — don't delete it.

Each delivery is sent once. If one fails, check the delivery log (Integrations → Webhooks) and use "Test connection" to try again.

Dependencies

supabase CLI

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